Subspace tracking for uplink/downlink array processing in CDMA systems

被引：0

作者：

Simeone, O ^{[1
]}

Nicoli, M ^{[1
]}

Spagnolini, U ^{[1
]}

机构：

[1] Politecn Milan, Dip Elettr & Informaz, I-20133 Milan, Italy

来源：

GLOBECOM'03: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-7 | 2003年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In antenna array systems, downlink beamforming and uplink maximum likelihood structured channel estimation can be formulated under a common framework related to the algebraic stucture of the two problems. The slow variations of the uplink and downlink spatial subspaces, due to moving terminals, can be tracked by using an adaptive structure based on a common processing block, namely a subspace tracker. Simulations for realistic propagation conditions show that the structure is able to efficiently cope with fast-varying fading channels, allowing relevant gains compared to conventional techniques.

引用

页码：824 / 828

页数：5

共 50 条

[41] Routing and Uplink-Downlink Scheduling in Ad Hoc CDMA Networks
Neishaboori, A.
Kesidis, G.
2006 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-12, 2006, : 926 - 931
[42] Band distribution between uplink and downlink in CDMA satellite mobile networks
Marano, S
Mastroianni, C
Pizzuto, G
GLOBECOM 98: IEEE GLOBECOM 1998 - CONFERENCE RECORD, VOLS 1-6: THE BRIDGE TO GLOBAL INTEGRATION, 1998, : 3620 - 3625
[43] Uplink and downlink experimental CDMA overlay of GSM network in fading environment
Widdowson, T
Noel, L
ELECTRONICS LETTERS, 1999, 35 (17) : 1440 - 1441
[44] A wideband satcom based avionics network with CDMA uplink and TDM downlink
Agrawal, D
Johnson, BS
Madhow, U
Ramchandran, K
Chun, KS
COLLECTION OF THE 18TH AIAA INTERNATIONAL COMMUNICATIONS SATELLITE SYSTEMS CONFERENCE AND EXHIBIT, TECHNICAL PAPERS, VOLS 1 AND 2, 2000, : 881 - 891
[45] Instrumental variable subspace tracking with applications to sensor array processing and frequency estimation
Gustafsson, T
Viberg, M
8TH IEEE SIGNAL PROCESSING WORKSHOP ON STATISTICAL SIGNAL AND ARRAY PROCESSING, PROCEEDINGS, 1996, : 78 - 81
[46] A Group-Blind MMSE Multi-user Detector Based on Subspace Tracking for MC-CDMA Uplink
Meng, Yan
Meng, Limin
Peng, Hong
Hua, Jingyu
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31, 2008, : 1617 - 1620
[47] ON THE ERROR FLOOR OF MC-CDMA SYSTEMS OVER RAYLEIGH FADING CHANNELS: UPLINK VS. DOWNLINK
Khalaf, Taha A.
Zekavat, Seyed A.
ICSPC: 2007 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1-3, PROCEEDINGS, 2007, : 476 - +
[48] Iterative cyclic subspace tracking for blind adaptive multiuser detection in multirate CDMA systems
Buzzi, S
Lops, M
Pauciullo, A
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2003, 52 (06) : 1463 - 1475
[49] Adaptive digital beamforming in cellular CDMA systems using noniterative signal subspace tracking
Shiu, WY
Blostein, SD
ICC'97: 1997 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS - TOWARDS THE KNOWLEDGE MILLENNIUM, CONFERENCE RECORD - VOLS 1-3, 1997, : 652 - 656
[50] The effect of carrier frequency offsets on downlink and uplink MC-DS-CDMA
Steendam, H
Moeneclaey, M
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2001, 19 (12) : 2528 - 2536

← 1 2 3 4 5 →